Scale



May 26, l925.- 7 I 1,539,601

C. E. RIEDEL SCALE Filed Nov. 10, 1919 s Shets-Sheet 1 lainunlnllim May 2.6, 1925 1,539,601

C. E. RIEDEL S GALE Filed Nov. 10; 1919 s Sheets-Sheet 2 May 26, 1925. 1,539I601 c. E. RIEDEL SCALE Filed Nov. 10, 1919 3 sheetssheet 3 mill III I v r nue nro z Q3 R $1 (13014401 5 Patented May 26, 1925.

PATENT CHARLES EDWARD RIEDEL, OF M OUNT CLEMENS, MICHIGAN, ASSIGNQR, BY MESNE ASSIGNMENTS, TO DAYTON SCALE COMIANY, 0F DAYTON, QHIO, A .CQRPORATIQN OFNEW JERSEY. s

SCALE,

Application flied November 10, 1919. Serial no. 335,926.-

To all whom it may concern:

Be it known that I, CrrAnLns EDWAR Rinne i, a citizen of the United States of America, residing at Mount Clemens, in the county of Macomb and State of Michigan, have ins-*ented certain new {Hid useful lln provcinents in Scales, of which the follow ing is a full clear, and exact description.

'Thisvinvention relates tocertein new and useful il'nprovernents in scales and is particularly directed to an improved platform le e s ste s 4 s Among the objects of n' y invention are the provision of a p'lattorn' lever system which will he compact and atthe same {time proide a r' lfi n ippdr rtil s ed Pl tform; a furthenohjectot my invention residesinthe provisionof a system of such characterfthat the use of checks and like devices forn aintaining the platform horiontal is obviated. Other objects reside in the provig'io'not e'systen'i of levers which will operate with a n'iinimumof friction and drag. Other objects willhe set forth in detail in the accplnpanying specification and d a in i the drawings ig 'ire 1 shows a perspec t ve V e of my imp o ed be s l v r stem with the platform broken aiwayto show the ev ls.- a 1 v Fig 2 shows a top plan of the base levers with platform and platform frame removed. Fig. 3 shows alongi ud inal section taken on 151193 3 of Fig. i I i Fig 4 shows a detail rear end View of the main lever. H i

The scale to which my invention is shown as applied is ofthe'con piiting drumtype with springs to resistthe movement oft-he le'versf A scale "of this general type is shown and dcsc'ribecl in detail in my Patent 1,355,499, and the details-"of the thermostat and connectionsto the drum and springs are found in the patent ofKing and Burkciser, 1,353 997 These details form no part of my present invention.

In tl'ic present embodiment 110 is the base of thescale having at the rear-12in upright pedestal 11 which supports the drum (not shown) and providesn housing forthc connections to the springs and hid ating drum. Upon the forward end of the base is'secured a bracket 12 having posts which support bearings for the front [ivotsl of the main scale lever This ever is substantially the platform of the scale.

pivots 19 which. support li'nk heari gs 20 and also cerries on intermediate ar1n'16 an intermediate pivot 22 which supports link hearing 23. I Underlying the main Y shz ped lever 14 is an auxiliary Bshaped lever (see Fig. 2), having the side armsthereof parallel to outside and below the side' arms of the Y-shaped lever, as shownin Figs 1, 2 and 3. The cross member 2i" ofau'xiliary lever 24 carries a suitable pivot which cooperates with link bearing 23, whereby the auxiliary lever is pivotal'ly support-ed at a s ngle po nt upon the ma n lever. Aurnhary lever 2 L also carries pa rs of upwardly P0lnt ins outw dly x din r ve s 26 a th forward end thereof and similarpai'rs 27 at therearward end of the lever, I

iv t o er te i lilik be in s 28 which are swiveled to plates 29 fastened to thebase 10 of the scale: The links form a swinging fulcrum for the auxiliary lever 24. i i 1' i A b nt a y he-ped p at orm support 30 stra dles q h leve s 14 and 2's a the forward endand projects between the arms of lever 151 and the arm of lever 24 a the r arw rd end as eel-1y hown in i 2- Tlle lslmred il e f r s q h integral 31'which support at their upper ends a skeleton frame 82 which in turn supportsthe glass plate 33 which forms flheendsjof rearward'ly extending arms of the Ishaped platform support have plates fastened thereto to which re swivelled the link bearingsQO. At the front ends of the arms pliet'i'or n support are similar plates to which link bearings 31 are swivellcd'. The hearings of the links cooperate with the knife edge pivots 26 which are moun'tedupon the forward ends of the auxiliaryjlever 24L. The movement the parts will be readily'understood from'the foregoing description. It may be stated, however, that the weight of the goods is transmitted to four points-namely, the ends of the arms of the platform support. The force is then divided, one portion being exerted through links 19 directly upon the main lever 14. The other part of the force is transmitted through links 34; to the auxiliary lever which in turn, through link bearing 2", transmits a proportionate part of the applied force to main lever 14:. Lever 14 is a lever of the third order and auxiliary lever 2a is a lever of the second order.

By referring to Fig. 2 it will be seen that pivots 27 are in vertical alignment with pivots 19 and pivots 13 are in vertical alignment with pivots 26. This arrangement gives a more stable support for the plat form.

The construct-ion set forth which provides for the application of the forces in the manner explained provides an extremely stable support for the platform and obviates the use of the check which is commonly used to maintain the platform in horizontal position. At the same time friction is minimized and the parts are extremely compact permitting the use of a shapely and low housing for the base lever system.

hat I claim and desire to secure by Let ters Patent of the United States is:

1. In a scale in combination, a main scale lever having a pair of fulcrum pivots at one end thereof and intermediate pivots, said intermediate pivots comprising a pair of platform supporting pivots and a single pivot intermediate the platform pivots and the fulcrum pivots, an auxiliary lever having a. pair of fulcrum pivots at one end thereof, a pair of platform pivots at the opposite end thereof in vertical alignment with the fulcrum pivots of the main scale lever, and a single intermediate pivot, and means for suspending the auxiliary lever from the main lever, said means comprising a connecting means cooperating with the aforesaid single intermediate pivots.

2. The invention set forth in claim 1 in which a platform support is pivotally supported upon the intermediate pivots of the main lever and the end pivots of the auxiliary lever.

S. In a scale, in combination, a main scale lever having a pair of fulcrum pivots at one end thereof and intermediate pivots, said intermediate pivotscomprising a pair of platform supporting pivots and a single pivot intermediate the platform pivots and the fulcrum pivots, anauxiliary lever having a pair of fulcrum pivots at one end thereof, a pair of platform pivots at the opposite end thereof, and a single intermediate pivot, means for suspending the auxiliary lever from the main lever, said means comprising a connecting means cooperating with the aforesaid single intermediate pivots, and a platform support, said platform support having a pair of swinging bearings cooperating with the forward pair of pivots on the auxiliary lever, and a pair of swinging bearings cooperating with the pair of intermediate pivots on the main lever whereby said platform support is pivotally supported on the main and auxiliary levers.

i. In a scale, in combination, a main scale lever having a pair of fulcrum pivots at one end thereof, and intermediate pivots, said intermediate pivots comprising a pair of platform supporting pivots and a single pivot intermediate the platform pivots and the fulcrum pivots, and an auxiliary lever having a pair of fulcrum pivots at one end thereof, said fulcrum pivots consisting of a pair of swinging bearings, a pair of platform pivots at the opposite end of said auxiliary lever, and a single intermediate pivot, means for suspending the auxiliary lever from the main lever, said means comprising a connecting means cooperating with the aforesaid lever pivots, a platform supported. upon the main and auxiliary levers, and means for pivotally supporting said support upon said levers comprising pairs of swinging bearings cooperating with the end pair of pivots on the auxiliary lever and the intermediate pair of pivots on the auxiliary lever.

In a scale in combination, a Y-shaped main lever having two pairs of pivots projecting outwardly from the Y-arms, one pair on the ends of the arms forming a lever support and the second pair disposed intermediate the ends of arms forming points of support for a platform support, Hshaped cross members integral with said main lever, an auxiliary lever of substan tially B-shape, means for supporting the B-shaped auxiliary lever by the main lever, said means comprising a swinging bearing connection co-operating'with a pivot on the cross-member of the B-shaped lever with a pivot on the H-shaped cross-member of the Y-shaped main lever and a platform support pivotally supported upon the main and auxiliary lovers.

6. In a scale in combination, a Y-shaped main lever having H-shaped cross-meml'iers, said lever having fulcrum pivots at one end and having a pair of intermediate pivots and also a single intermediate pivot, a B- shaped auxiliary lever having a pair of fulcrum pivots at one end, a pair of pivots at the opposite end, and a single pivot intermediate the ends, means for suspending the B-shaped lever from the Y-shaped main lever, said means comprising a swinging bearing co-operating with the single intermediate pivot on the main lever and the single intermediate pivot on the auxiliary B-shaped lever, and an I-shaped platform support pivotally supported upon the pair of intermediate pivots upon the main lever and the pair of end pivots on the auxiliary lever.

7. In a scale in combination, a main lever having a plurality of arms, said lever being pivoted at the ends of said arms, an auxiliary lever having arms extending sub- 10 stantially parallel with the arms of the main lever, said lever being fulerumed' at one end thereof, and being pivotally con nected with the main lever, and a platform support pivotally supported upon the auxiliary lever and having arms straddling the arms of said lever and pivotally supported by the main lever arms.

In testimony whereof I hereunto atlix my signature.

CHARLES EDWARD RIEDEL- 

